People spouting marketing terms again I see. Sounds good.
So, last gen games take 5GB of RAM that was available,
Stage 1 : should be able to load up a last gen game under 1 second easily, does RAM even need to be full to start..
Stage 2, stream 8K megapixels in nanoseconds within a frame with low latency and coherency. Does not matter what demo it is, players have infinite war chests, engine exists....
Lets see things get to stage 1 first, thats just fast streaming, stage 2 requires more.
We have not seen either yet.
Unreal engine will run on all platforms, does not mean it can do 8k asset voxel streaming in real time on all systems. I fail to see the logic here.